Video games have a bad reputation, it's either 'For kids.' or too violent. It's not the industry that has the problem though, if you say you are a game developer, people won't turn their face at you. It is the reaction of people, both gamers and non-gamers, that shape the image of gamers as a whole.
Gamers - Take recent calls to get someone fired over a review or the Mass Effect 3 ending debacle. It was fans reactions that caused the issue, in previous years we were unable to voice out concerns as much and now in the modern age we expect more and more, better and better, else it's just not good enough. We are spoilt.
Non-gamers - they see it as a waste of time or for kids. There is a weird social stigma when it comes to games and gamers. If you say you are a film buff and goto the cinema lots, people take interest, you are of higher society nearly. Those who watch TV, no one bats an eye. Yet say you are a gamer, suddenly you are seen as lower class. I play games, I don't watch TV. It is the entertainment industry I grew up with and I will game for all my life no doubt.
This said, I don't like to admit I play games outright to new people because of the reputation of gamers and the social aspect that saying 'I play games' to others may bring, it's the same as saying 'I read comics'. I don't like to advertise to the normal masses that I read comics even if I do because I know the social presumptions that people have of comic book readers. If someone asks if I read and I say 'Yes, comics.' they see that as not reading and it's for kids yet Comics have been around for decades.